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  • Visual Basic for Application

    Private Sub Worksheet_SelectionChange(ByVal Target As Range)
       'The note of Visual Basic for Application
       'VBA 是由微软开发出来的一种宏语言,寄于对Windows桌面程序功能的扩展,和VB语言结构相似,是VB的子集;
       'VBA常见的作用:
           '1.规范用户的操作,控制用户的操作行为;
           '2.操作界面人性化,方便用户的操作;
           '3.多个步骤的手工操作通过执行VBA代码可以迅速的实现;
           '4.实现一些VB无法实现的功能;
           '5.用VBA制做EXCEL登录系统;
           '6.利用VBA可以Excel内轻松开发出功能强大的自动化程序.
       'VBA中常见的数据类型:
           '1.  Integer    整型     %
           '2.  Single    单精度    !
           '3.  Double    双精度    #
           '4.  String    字符串    $
           '5.  Long      长整型    &
           '6.  Currency  货币型    @
    
        'VBA判断语句:
          '(1)IF判断语句:
           '单行判断语句:不需要使用End If
                   Dim a As Integer
                   a = 4
                   If a > 3 Then MsgBox "大于3"
      
          '多行判断语句:需要使用End If
                   If a > 2 Then
                            MsgBox "大于2"
                   ElseIf a > 5 Then
                            MsgBox "大于5"
                   Else
                            MsgBox "feirup"
                  End If
          '(2)IIF判断语句:
                   MsgBox IIf(a > 2, "不错", "一般")
    
          '选择语句:
            'Select Case语句:
                   Dim i As Integer
                   i = 1
                   Select Case i
                            Case Is > 0
                                   MsgBox "正数"
                            Case Is < 0
                                   MsgBox "负数"
                            Case Else
                                   MsgBox "0"
                    End Select
         '循环语句:
           'DO...LOOP语句:
                    Dim t As Integer
                    t = 1
                    Do
                        t = t + 1
                        If t > 10 Then MsgBox "大于10了"
                    Loop
    
        'While语句:
                 Dim rs%
                 rs = 2
       
                Do While Cells(rs, 2) <> ""
                     Cells(rs, 3) = "非若"
                     rs = rs + 1
                Loop
        'Until循环语句:
                Dim t%
                t = 2
                Do Until Cells(t, 2) = ""
                      Cells(t, 3) = "feiruo"
                       t = t + 1
                Loop
        'for each...next语句:
    
                Dim rng As Range, n!
                For Each rng In Sheet1.Range("a1:a10")
                      If rng = "A3" Then
                         rng.Interior.ColorIndex = 3
                      Else
                         rng.Interior.ColorIndex = 6
                      End If
                Next
        'for...next语句:
                Dim i!, j!
                For i = 1 To 100 Step 2
                     j = j + 1
                Next i
                MsgBox "j=" & j
    
         'End与Exit语句:
              '1. Exit Do
              '2.Exit For
              '3.Exit Function
              '4.Exit Sub
                Dim r!
                For r = 2 To 7
                  If Sheet1.Cells(r, 1) = "非若" Then
                Exit For
                  End If
                Next r
                MsgBox "非若(第一个)在第" & r & "行!"
    
    
             Sub button()
    
              '1.End
              '2.End Function
              '3.End If
              '4.End Select
              '5.End Sub
                 Dim i!
                  i = 3
                MsgBox "i=" & i
                 End '直接停止程序
                MsgBox "退出le"
                 End Sub
    
        '跳转语句:
        'GoTo line无条件转移程序中指定的程序行
             Dim str$, k!
             k = 1
          line:
             k = k + 1
             If k > 3 Then Exit Sub
                  str = InputBox("请输入用户名!")
             If str <> "admin" Then GoTo line
       '错误分支语句:
             Dim i!
            'On Error Resume Next '当遇到错误的时候继续执行下去
             On Error GoTo ERROR:
    
                 For i = 2 To 8
                      Cells(i, 4) = Cells(i, 3) + Cells(i4)
                 Next i
                 MsgBox "运行完毕"
    
    ERROR: MsgBox "遇到错误!"
    
        'width语句:对某个对象执行一系列的语句是,不用重复指出对象的名称
               'a = Range("a1").Address
               'b = Range("a1").Parent.Name
          With Range("a1")
               a = .Address
               b = .Parent.Name
              MsgBox a '$A$1
              MsgBox b 'Sheet1
          End With
        
    
    
    End Sub
    'VBA 函数:
       Dim i%
       
       For i = 1 To 11 Step 1
       Sheet1.Cells(i, 4) = "=sum(a" & i & ":b" & i & ")"
       Sheet1.Cells(i, 3) = "=COUNTIF(A1:A11,"">12"")"
       Sheet1.Cells(i, 5) = "=sum(INDIRECT(""a1:a10""))"
       Next i
    
    Dim i%
       
       MsgBox Application.WorksheetFunction.CountIf(Range("a1:a10"), 14) '3  统计3的14的个数 等价于:
       
       'MsgBox Application.CountIf(Range("a1:a10"), 14)
       
       'MsgBox WorksheetFunction.CountIf(Range("a1:a10"), 14)
       
        MsgBox VBA.Format(Range("b1"), "0.00")
        
        MsgBox Format(Range("b1"), "0.00")
    
     '自定义函数:
        Function sex(rng As Range)
         MsgBox sex = IIf(Mid(rng, 15, 3) Mod 2, "", "")
       End Function

                                                                                                                                            -------非若------

                                                                                                                                              2015.09.24

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  • 原文地址:https://www.cnblogs.com/feiruo/p/4836658.html
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